Rather than receiving text that someone liked, loved, or hated something you posted , iMessage Tapbacks will now somewhat look like what they do on an iPhone.
As with most Google products these days this is not something that you can force with an update or download, it’ll get to you when you get to it. This only applies to Google Messages and not the messages that phone generally ship with, although some of them use Google’s innards so maybe it’ll work.
No word on whether you can Tapback other people.
It has not rolled out for me yet <sad trombone>[9to5google]